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The Influence Of Priming Two Cucumber Cultivar Seeds

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J. Duhok Univ. Vol.13, No.1, (Agri. And Vet. Sciences) Pp 94-102, 2010<br />

Ab O/P<br />

0.33a<br />

0.66a<br />

0.94a<br />

0.61a<br />

0.77a<br />

0.6a<br />

0.73a<br />

0.66a<br />

0.33a<br />

0.33a<br />

0.33a<br />

0.66a<br />

0.5a<br />

0.83a<br />

0.83a<br />

1a<br />

1a<br />

0.5a<br />

1.16a<br />

0.16a<br />

0.66a<br />

0.66a<br />

1a<br />

011<br />

Table (4): <strong>The</strong> effects of varying abscisic acid (ABA) rates on some flowering and pod performance traits of<br />

five water stressed fababean cultivars* **<br />

Ab S/P<br />

0.39a<br />

0.16a<br />

0.33a<br />

0.22a<br />

0.33a<br />

0.36a<br />

0.23a<br />

0.27a<br />

0.66a<br />

0.5a<br />

0.0a<br />

0.16a<br />

0.33a<br />

0.0a<br />

0.5a<br />

0.0a<br />

0.5a<br />

0.16a<br />

0.0a<br />

0.5a<br />

0.33a<br />

0.33a<br />

0.33a<br />

P L (cm)<br />

14.81ab<br />

16.03a<br />

14.11ab<br />

12.7b<br />

12.84b<br />

13.62a<br />

13.89a<br />

14.79a<br />

15.42ab<br />

14.17ac<br />

14.84ac<br />

16.42a<br />

14.75ac<br />

16.92a<br />

14ac<br />

14.34ac<br />

14.01ac<br />

10.6c<br />

13.67ac<br />

13.84ac<br />

11.67bc<br />

12.51ac<br />

14.34ac<br />

P no/S<br />

2.33a<br />

1.66bc<br />

1.88ab<br />

2ab<br />

1.33c<br />

1.73a<br />

1.73a<br />

2.06a<br />

2ac<br />

2ac<br />

3a<br />

1.66bc<br />

2ac<br />

1.33bc<br />

2ac<br />

1.66bc<br />

2ac<br />

2ac<br />

1.66bc<br />

2.33ab<br />

1c<br />

1.33bc<br />

1.66bc<br />

No FF<br />

2.22a<br />

1.66ab<br />

1.55b<br />

1.88ab<br />

1.33b<br />

1.66a<br />

1.6a<br />

1.93a<br />

2ac<br />

2ac<br />

2.66a<br />

1.66ac<br />

2ac<br />

1.33bc<br />

1.66ac<br />

1.33bc<br />

1.66ac<br />

2ac<br />

1.33bc<br />

2.33ab<br />

1c<br />

1.33bc<br />

1.66ac<br />

FFN<br />

6.11a<br />

6.89a<br />

4.33b<br />

6.77a<br />

7a<br />

6.2a<br />

6.06a<br />

6.4a<br />

7ac<br />

5.33cf<br />

6be<br />

6.33ad<br />

6.33ad<br />

8a<br />

4.33ef<br />

4.66df<br />

4f<br />

6.66ac<br />

7.66ab<br />

6be<br />

6.66ac<br />

6.33ad<br />

8a<br />

S%<br />

5.05b<br />

4.56b<br />

22.12a<br />

5.95b<br />

3.79b<br />

9.02a<br />

7.41a<br />

8.45a<br />

5.22c<br />

4.39c<br />

5.54c<br />

4.96c<br />

5.5c<br />

3.21c<br />

25.02a<br />

19.26b<br />

22.07ab<br />

6.54c<br />

4.76c<br />

6.57c<br />

3.37<br />

3.14c<br />

4.87c<br />

F no/I<br />

3.74a<br />

3.44ab<br />

2.36c<br />

3.2b<br />

3.48ab<br />

3.27a<br />

3.22a<br />

3.24a<br />

4.08a<br />

3.48ab<br />

3.66ab<br />

3.18 bc<br />

3.6ab<br />

3.55ab<br />

2.22d<br />

2.46cd<br />

2.39cd<br />

3.51ab<br />

3bd<br />

3.08bc<br />

3.36ab<br />

3.56ab<br />

3.53ab<br />

F N no<br />

12.66a<br />

10.88b<br />

3.77c<br />

10.88b<br />

10b<br />

8.4a<br />

10.13a<br />

10.4a<br />

9.66c<br />

13.33ab<br />

15a<br />

10.66bc<br />

10.33c<br />

11.66bc<br />

3.66d<br />

3.66d<br />

4d<br />

9c<br />

11.66bc<br />

12bc<br />

9c<br />

11.66bc<br />

9.33c<br />

Parameters<br />

Aquadulce<br />

Syrian<br />

Taka357<br />

<strong>Two</strong>waytha<br />

Babylon<br />

0.0 ABA<br />

2x10 -6 M ABA<br />

2x10 -3 M ABA<br />

0.0 M<br />

2x10 -6 M<br />

2x10 -3 M<br />

0.0 M<br />

2x10 -6 M<br />

2x10 -3 M<br />

0.0 M<br />

2x10 -6 M<br />

2x10 -3 M<br />

0.0 M<br />

2x10 -6 M<br />

2x10 -3 M<br />

0.0 M<br />

2x10 -6 M<br />

2x10 -3 M<br />

Aqudulc<br />

e<br />

Syrian<br />

Taka 357<br />

<strong>Two</strong>wayt<br />

ha<br />

Babylon<br />

**F N no = flowering node number on main stem; F no/I = flower number per inflorescence; S5 = setting<br />

percentages: FFN = first fruiting node; No FF = number of fruiting node on main stem; P no/ S = pod number<br />

per main stem; P L = pod length; Ab S/P = number of aborted seed per pod;<br />

Ab O/P = number of aborted ovule per pod<br />

* Figures of unshared characters are significant (Duncan, 0.05)<br />

Syrian cultivar exhibited the highest plant<br />

fresh weight (216 g), weight of mature pods per<br />

plant (91.33 g), weight of pod integument (8.05<br />

g.plant -1 ), and therefore, it significantly exceeded<br />

Babylon which gave the lowest plant fresh<br />

weight (131.22 g), and mature pod weight per<br />

plant (43.33 g). Syrian was also superior on<br />

Taka357 in pod dry weight per plant (27.93g),<br />

and dry seed yield (20.56 g.plant -1 ). Aquadulce<br />

highly exceeded Babylon in plant fresh weight,<br />

weight of mature pods per plant, weight of dry<br />

pods, yield of dry seeds by 35.7, 44, and 31.6%,<br />

respectively,(table, 5). It also hugely exceeded<br />

Taka357 in pod dry weight and yield of dry<br />

seeds by 32% and 37.8%, respectively. Similar<br />

results were found by Abdel (1982) He<br />

postulated that Newblackfly fababean cultivar is<br />

semi-conservatives cultivar, whereas Tiger and<br />

Blaze cultivars are conservatives and Bery<br />

cultivar was drought escapable. <strong>The</strong>y possess the<br />

capability compromising between CO2 entrance<br />

to mesophyll intercellular spaces and the exit of<br />

transpired vapour. Taka357 was categorized as<br />

drought escapee cultivar only for the production<br />

of green pod yield, but not for mature pod and<br />

dry seed yields. Babylon and <strong>Two</strong>waytha were<br />

categorized with conservative cultivars that they<br />

tightly close their stomata sustaining hydrated<br />

internal tissues concomitant with lack in<br />

mesophyll CO2 that profoundly reduces<br />

photosynthesis. Photosynthetic capacity (CO2<br />

assimilation rate for any given leaf intercellular<br />

CO2 concentration [ci]) and relative stomatal<br />

sensitivity to leaf-to-air vapor-pressure<br />

difference were unaffected by the ABA<br />

treatment (Franks and Farquhar 2001).<br />

Exogenous application of abscisic acid<br />

revealed no appreciable influences on growth<br />

responses of any of the investigated cultivars<br />

(table, 1). <strong>The</strong> reasonable interpretation of ABA<br />

ineffectiveness might be come from the<br />

following (1): <strong>The</strong> exogenous ABA presumably<br />

not demanded for permanent hormonal balance<br />

during juvenility and for further development of<br />

fababean, where a synchronization of growth<br />

(node generations) and pod development and<br />

seed performance. Accumulated ABA in leaves<br />

that were subjected to drought were mainly

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